3 ms·
The article mentions potentially lifting an 8 million metric ton piston. Let's see: A weight of 8 x 10^9 kg raised 100 meters = a potential energy of 8 x 10^1
by 8bitsrule 6y ago
The article mentions potentially lifting an 8 million metric ton piston.
Let's see: A weight of 8 x 10^9 kg raised 100 meters
= a potential energy of 8 x 10^11 kg-m
PE x 2.724 x 10^-6 kWh / kg-m = 2.18 x 10^6 kWh (2 GWh)
Allowing a little loss that's enough to supply 2000 houses with 1000 kWh each in one month ... or 20,000 houses with 40kWh in 2.5 days.